Base | Representation |
---|---|
bin | 11000101010011000… |
… | …01100101100001010 |
3 | 1021011202012002020210 |
4 | 30111030030230022 |
5 | 204104021434010 |
6 | 10025500101550 |
7 | 646052502606 |
oct | 142514145412 |
9 | 37152162223 |
10 | 13240421130 |
11 | 5684966402 |
12 | 26962348b6 |
13 | 133013c421 |
14 | 8d8670506 |
15 | 5275e2b20 |
hex | 31530cb0a |
13240421130 has 64 divisors (see below), whose sum is σ = 33555461760. Its totient is φ = 3334351104.
The previous prime is 13240421123. The next prime is 13240421167. The reversal of 13240421130 is 3112404231.
It is a junction number, because it is equal to n+sod(n) for n = 13240421097 and 13240421106.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144052 + ... + 217328.
It is an arithmetic number, because the mean of its divisors is an integer number (524304090).
Almost surely, 213240421130 is an apocalyptic number.
13240421130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 13240421130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16777730880).
13240421130 is an abundant number, since it is smaller than the sum of its proper divisors (20315040630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13240421130 is a wasteful number, since it uses less digits than its factorization.
13240421130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 73623.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 13240421130 its reverse (3112404231), we get a palindrome (16352825361).
The spelling of 13240421130 in words is "thirteen billion, two hundred forty million, four hundred twenty-one thousand, one hundred thirty".
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